S-91829A502 3/8"-16 NASM51575 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
- Precise alignment and reduced wear due to the 1/2" shoulder diameter with tight tolerance (-0.001" to 0") for stable component positioning.
- High strength and durability with 70,000 psi tensile strength and Rockwell B55 hardness, ensuring reliable performance under stress.
- Easy installation and removal featuring a socket head with slotted drive for secure tool engagement and efficient assembly.
- Consistent thread performance with UNC coarse threads and Class 2A fit, providing smooth engagement and vibration resistance.
- Compliance with rigorous standards including NASM51575, RoHS 3, and REACH, guaranteeing quality and environmental safety.
- Versatile right-hand thread design with 3/8"-16 size for broad compatibility in various mechanical applications.
Professional Applications & Engineering Value
This 18-8 stainless steel shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component wear. The 1/2" shoulder diameter with minimal tolerance ensures exact positioning in machinery, jigs, and rotating parts, while the UNC coarse threads and Class 2A fit offer reliable fastening in high-vibration environments. Made from corrosion-resistant 18-8 stainless steel and featuring a passivated finish, it withstands exposure to moisture and chemicals, extending service life in industries like aerospace, automotive, and industrial equipment. Its socket head design allows for easy access in confined spaces, streamlining maintenance and reducing downtime for B2B procurement of durable precision fasteners.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit and precise shoulder tolerances (diameter: -0.001" to 0"; length: 0" to 0.002"), ensuring dimensional accuracy per UNC thread standards. It meets NASM51575 specifications for manufacturing consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.
